Influence of morphology and structure on hydrophilicity of TiO 2 NTs
Applied Physics A(2018)
摘要
The TiO 2 NTs with special three-dimensional tubular morphology was prepared by anodic oxidation method, the methods of nonmetal doping, Ti 3+ self-doping and semiconductor recombination were used as the modification of TiO 2 NTs. The contact angles of different samples after modification were measured. The structure and morphology of the samples were characterized by SEM, EDS and XPS, and the influence of different factors on the contact angle of TiO 2 NTs was investigated. The results show that the hydrophilicity is closely related to the morphology and structure of the material. The special tubular structure of TiO 2 NTs has a smaller contact angle, and the semiconductor composite will block the nozzle and increase the contact angle to a certain extent. Under the premise of not changing the morphology, doping modification can make TiO 2 NTs achieve hydrophilicity under visible light.
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关键词
Oxide Interfaces
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